extremely

adverb

ex·​treme·​ly ik-ˈstrēm-lē 

1

: in an extreme manner

2

: to an extreme extent

Synonyms of extremely

• very
• incredibly
• terribly
• highly
• too
• so
• badly
• damned
• severely
• damn
• really
• super
• desperately
• intensely
• seriously
• far
• exceptionally

Examples of extremely in a Sentence

an extremely hot day

Recent Examples on the Web

Researchers mixed ice with cellulose nanocrystals, extremely small, stiff particles made from cellulose. — Prabhat Ranjan Mishra, Interesting Engineering, 27 Sep. 2026

Reading the casebooks, reading in other archives, but also a sense of reading the cityscape, seeking traces of these lives that had been and gone and yet felt extremely close to me. — Robert Sullivan, Vogue, 26 Sep. 2026

Suspicions of a link between extremely rare congenital infections and the development of autism spectrum disorder (ASD) have been supported by a massive new study led by scientists from the Karolinska Institute in Sweden. — Mike McRae 24, New Atlas, 25 Sep. 2026

It is used to describe someone who looks extremely confident, impeccably styled, fierce, or authentically and powerfully feminine. — Jake Kanter, Deadline, 25 Sep. 2026

Word History

First Known Use

1509, in the meaning defined at sense 1

Phrases Containing extremely

• extremely high frequency
• extremely low frequency

Rhymes for extremely

• seemly
• unseemly